What optional inks are available for the SP 9600/7600? How do I determine which ink I should be using? How do I switch between inks?

• The SP7600/9600 can be set up in three different ink configurations initially.
  
  Photo Black/Light Black - Used for all media types (glossy - semigloss - matte based-media).
  
  Matte Black/Light Black - Used for matte-based media printing (driver changes to support matte-based media).
  
  Dual Matte Black - Used for matte-based media printing where speed, not quality, is the concern, such as GIS or mapping (driver changes to support matte-based media).